重金属污染土壤的植物修复技术研究进展探讨

Research Progress on Phytoremediation of Soil Contaminated by Heavy Metals

大多数传统的重金属污染治理技术成本高,会引起土壤肥力下降,对各类生态系统造成负面影响。植物修复技术是一种成本低、环境友好的方法,不会对土壤性质和生态系统产生不利影响。文章综述了植物修复治理重金属污染土壤的研究进展,探讨如何通过采取物理、化学、生物技术及农艺措施等方法提高修复植物的生物量和重金属积累量并展望了今后的研究方向。

The great mass of conventional remedial technologies are expensive and inhibit the soil fertility as well as cause negative impacts on various ecosystem services. However, phytoremediation is a cost effective and ecofriendly approach, which does not disadvantageously affect soil properties and ecosystem services. This paper reviewed the research progress in phytorernediation of heavy metal contaminated soil, discussing physics, chemistry, biotechnology, and agronomic methods of increasing plant biomass and heavy metal accumulation and the prospect of future research directions.